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19 Cards in this Set
- Front
- Back
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what characteristic is responsible for the branching off of sponges from the other animals? |
no true tissue |
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what level of organization do they demonstrate? |
cell level |
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what does the word "porifera" mean? |
pore bearers |
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what is the name of the flagellated cells seen in sponges? |
choanocytes |
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what characteristics are used to divide this phylum into classes? |
canal systems, flagellated cells and skeletal structure |
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what is the name of the central cavity of sponge body types and skeletal structures? |
spongocoel |
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what is the name of the large opening at the top of the sponge? |
osculum |
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what is this body type and where are the flagellated cells? |
asconoid: flagellated spongocoel
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what is this body type and where are they flagellated cells? |
syconoid:flagellated canals |
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what is this body type and where are the flagellated cells? |
leuconoid: flagellated chambers |
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what are the name of the skeletal structures seen in sponges? what are they made of? |
spicules: made of calcium carbonate or silica
made of spongins (protein) |
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type of digestive system? |
none, intracellular digestion |
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type of excretory system? |
none |
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type of circulatory system? |
none |
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type of respiratory system? |
none |
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type of nervous system? |
none, local reactions
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type of body cavity? |
none |
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type of asexual reproduction? |
budding or gemmules |
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type of sexual reproduction? |
egg and sperm |
